Bilyk

i bought a set and the u-joints seem about a 16th of an inch too long?

86Moon

They are the right ones :thumbs:
Spicer Bros. U-joint PN’s 5-800x for the half shafts and 5-786x for the driveline --à New PN SPL-30x half shafts and http://www.dana.com/technology/services/

trupp

Those are the right ones for the half shafts. When I did mine I noticed the same thing, about .060 to wide. when you install them the caps will have to pressed together. There is a little ridge that the caps go over once this happens they will be the proper width.

Rich B.

I'm curious as to where on that web site you found part numbers for universal joints...I'd like to look up the numbers for my '86, but can't find any mention of U-joints...And the catalog isn't on-line yet... :confused:

86Moon

I didn't, I got the info from other sources (and I have personally installed these PN's on my 86). I posted the website because, if I recall correctly there is contact info there for Dana who owns Spicer, and I think Napa :cheers:

Kevin 88

They make a loud SNAP when you press the caps on. Sounds like something breaking, but it is just the seal clicking in place. I used a C-clamp to seat the caps.

Mike_88Z51

Last year I called Spicer in Ft. Wayne, IN directly and spoke to one of their guys who put me on their internal web page so I could see what was specified there. The 5-800X are correct. The end caps have an anodized coating just for aluminum half-shafts. Some shops (including a local Chevy dealership I know of) use the steel cap units and put ant-seize on the caps because it's cheaper, but Spicer told me that the specified heavy-duty units for C4 aluminum half-shafts is the 5-800X. That's what I put on my 88 and absolutely no problems.


[Modified by Mike_88Z51, 4:21 PM 5/25/2004]

Corvette Kid

Are these the numbers for all C4s, such as my '95? And are these the joints without the grease fittings? Thanks.

86Moon

They are the HD non zirked. I don't know about the specific years for application.